I work for a company in Africa that works with smallholder farmers. One way that we try to improve our farmers' experiences is through showing them video of agricultural techniques and other subjects. The videos are all put on Samsung Galaxy Tab3 or 4 tablets and shown to the clients in the field. I need to know how many times the video is open and being shown to clients. The current video application we use does not track number of times viewed or open. Does anyone have a suggestions for an app or another way that I can track this? Thanks.